1017940940 has 24 divisors (see below), whose sum is σ = 2143332240. Its totient is φ = 406099008.

The previous prime is 1017940933. The next prime is 1017941047. The reversal of 1017940940 is 490497101.

It is a self number, because there is not a number n which added to its sum of digits gives 1017940940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59567 + ... + 74726.

It is an arithmetic number, because the mean of its divisors is an integer number (89305510).

Almost surely, 2^1017940940 is an apocalyptic number.

1017940940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017940940 is an abundant number, since it is smaller than the sum of its proper divisors (1125391300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1017940940 is a wasteful number, since it uses less digits than its factorization.

1017940940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134681 (or 134679 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1017940940 is about 31905.1867256721. The cubic root of 1017940940 is about 1005.9449014455.

The spelling of 1017940940 in words is "one billion, seventeen million, nine hundred forty thousand, nine hundred forty".